单选题Childhood memoirs often gain their poignancy through a sense of displacement: each lesson is accompanied by a loss of ______.

单选题Foreign propagandists have a strange misconception of our national character. They believe that we Americans must be hybrid, mongrel, undynamic; and we are called so by the enemies of democracy because, they say, so many races have been fused together in our national life. They believe we are disunited and defenseless because we argue with each other, because we engage in political campaigns, because we recognize the sacred right of the minority to disagree with the majority and to express that disagreement even loudly. It is the very mingling of races, dedicated to common ideals, which creates and recreates our vitality. In every representative American meeting there will be people with names like Jackson and Lincoln and Isaacs and Schultz and Kovack and Sartori and Jones and Smith. These Americans with varied. backgrounds are all immigrants or the descendants of immigrants. All of them are inheritors of the same stalwart tradition of unusual enterprise, of adventurousness, of courage--courage to "pull up stakes and git moving". That has been the great compelling force in our history. Our continent, our hemisphere, has been populated by people who wanted a life better than the life they had previously known. They were willing to undergo all conceivable hardships to achieve the better life. They were animated, just as we are animated today, by this compelling force. It is what makes us Americans.

单选题The passage is mainly to ______.

单选题Alcohol ingestion is said to reduce the tension or feelings of unpleasantness and to replace them with the feeling of euphoria generally observed in most persons after they have consumed one or more drinks. A. escalation B. elation C. delusion D. indifference

单选题It is very strange but I had an ______ that the plane would crash.(2011年四川大学考博试题)

单选题Whoever has skills and knowledge in this country, I believe, should be properly treated and rewarded______his educational background and family origin.

单选题They might be willing to move from country to country, until they end up in a backwater ______nation with no laws or lawmakers to speak of, and can proceed with their miserably experiments. A. well-built B. ill-conceived C. well-groomed D. ill-bred

单选题The fact that the management is trying to reach agreement ______ five separate unions has led to long negotiations. A. over B. upon C. in D. with

单选题Three weeks after the suicide bombing, the police were still hunting for bombers for they believe more were ______.

单选题{{B}}Passage 4{{/B}} In 1993, a mall security camera captured a shaky image of two 10-year-old boys leading a much smaller boy out of a Liverpool, England, shopping center. The boys lured James Bulger away from his mother, who was shopping, and led him on a long walk across town. The excursion ended at a railroad track. There, inexplicably, the older boys tortured the toddler, kicking him, smearing paint on his face and pummeling him to death with bricks before leaving him on the track to be dismembered by a train. The boys, Jon Venables and Robert Thompson, then went off to watch cartoon. Today the boys are 18-year-old men, and after spending eight years in juvenile facilities, they have been deemed fit for release--probably this spring. The dilemma now confronting the English justice system is how to reintegrate the notorious duo into a society that remains horrified by their crimes and skeptical about their rehabilitation. Last week Judge Elizabeth Butler-Sloss decided the young men were in so much danger that they needed an unprecedented shield to protect them upon release. For the rest of their lives, Venables and Thompson will have a right to anonymity. All English media outlets are banned from publishing any information about their whereabouts or the new identities the government will help them establish. Photos of the two or even details about their current looks are also prohibited. In the U. S. , which is harder on juvenile criminals than England, such a ruling seems inconceivable. "We're clearly the most punitive in the industrialized world," says Laurence Steinberg, a Temple University professor who studies juvenile justice. Over the past decade, the trend in the U. S. has been to allow publication of ever more information about underage offenders. U. S. courts also give more weight to press freedom than English courts, which, for example, ban all video cameras. But even for Britain, the order is extraordinary. The victim's family is enraged, as are the ever-eager British tabloids. "What right have they got to be given special protection as adults." asks Bulger's mother Denise Fergus. Newspaper editorials have insisted that citizens have a right to know if Venables or Thompson move in next door. Says Conservative Member of Parliament Humfrey Malins: "It almost leaves you with the feeling that the nastier the crime, the greater the chance for a passport to a completely new life."

单选题Although it rules that these is no constitutional right to physician-assisted suicide, the Court in effect supported the medical principle of "double effect", a ______ moral principle holding that an action having two effects—a good one that is intended and a harmful one that is foreseen—is permissible if the actor intends only the good effect. A. century's old B. century old C. centuries's old D. centuries-old

单选题She complained that she had been______the opportunity to appeal against the court's decision.

单选题Now the public has an unprecedented chance to peer over the shoulders of archaeologists and historians and get a firsthand look at the ______ of the Mongols and their Asian predecessors.

单选题In assessing the impact of the loss of a parent through death and divorce it was the distortion of family relationships not the ______ of the bend with the parent in divorce that was vital.

单选题The climate of Earth is changing. Climatologists are confident that over the past century, the global average surface temperature has increased by about half a degree Celsius. This warming is thought to be at least partly the result of human activities, such as the burning of fossil fuels and the clearing of forests for agriculture. As the global population grows and national economies expand, the global average temperature is expected to continue increasing by an additional 1.0℃ to 3.5℃ by the year 2100. Climate change is one of the most important environmental issues facing human- kind. Understanding the potential impacts of climate change for natural ecosystems is essential if we are going to manage our environment to minimize the negative consequences of climate change and maximize the opportunities that it may offer. Because natural ecosystems are complex, nonlinear systems, it follows that their responses to climate change are likely to be complex. Climate change may affect natural ecosystems m a variety of ways. In the short term. climate change can alter the mix of plant species in land ecosystems such as grasslands. In the long term, climate change has the potential to dramatically alter the geo- graphic distribution of major vegetation types savannas, forests, and climate change can also potentially alter global ecosystem processes, including the cycling of carbon, nitrogen, phosphorus, and sulfur. Moreover. changes in these ecosystem processes can affect and be affected by changes in the plant species of the ecosystem and vegetation type. All of the climate change-induced alterations of natural ecosystems affect the services, that these ecosystems provide to humans. The global average surface temperature increase of half a degree Celsius observed over the past century has been in part due to differential changes in daily maximum and minimum temperatures, resulting in a narrowing of the diurnal temperature range. Decreases in the diurnal temperature range were first identified in the United States, where large-area trends showed that maximum temperatures have remained constant or increased only slightly, whereas minimum temperatures have increased at a faster rate. In this issue, Al-ward et al. report on the different sensitivities of rangeland plants to minimum temperature increases.

单选题The town planning commission said that their financial outlook for the next year was optimistic. They expect increased tax ______. (2013年北京航空大学考博试题)

单选题As did his ______ Sigmund Freud, Albert Einstein, and Henry Ford, Thomas Edison profoundly transformed the Western World. A. contemporaries B. part-owners C. companions D. accomplices

单选题______, he did become annoyed with her at times.

单选题The journal Science is adding an extra round of statistical checks to its peer-review process, editor-in-chief Marcia McNutt announced today. The policy follows similar efforts from other journals, after widespread concern that basic mistakes in data analysis are contributing to the irreproducibility of many published research findings. "Readers must have confidence in the conclusions published in our journal," writes McNutt in an editorial. Working with the American Statistical Association, the journal has appointed seven experts to a Statistics Board of Reviewing Editors(SBoRE). Manuscript will be flagged up for additional scrutiny by the journal's internal editors, or by its existing Board of Reviewing Editors or by outside peer reviewers. The SBoRE panel will then find external statisticians to review these manuscripts. Asked whether any particular papers had impelled the change, McNutt said: "The creation of the 'statistics board' was motivated by concerns broadly with the application of statistics and data analysis in scientific research and is part of Science's overall drive to increase reproducibility in the research we publish. " Giovanni Parmigiani, a biostatistician at the Harvard School of Public Health, a member of the SBoRE group. He says he expects the board to "play primarily an advisory role. " He agreed to join because he "found the foresight behind the establishment of the SBoRE to be novel, unique and likely to have a lasting impact. This impact will not only be through the publications in Science itself, but hopefully through a larger group of publishing places that may want to model their approach after Science. " John Ioannidis, a physician who studies research methodology, says that the policy is "a most welcome step forward" and "long overdue. " "Most journals are weak in statistical review, and this damages the quality of what they publish. I think that, for the majority of scientific papers nowadays, statistical review is more essential than expert review," he says. But he noted that biomedical journals such as Annals of Internal Medicine , the Journal of the American Medical Association and The Lancet pay strong attention to statistical review. Professional scientists are expected to know how to analyze data, but statistical errors are alarmingly common in published research, according to David Vaux, a cell biologist. Researchers should improve their standards, he wrote in 2012, but journals should also take a tougher line, "engaging reviewers who are statistically literate and editors who can verify the process. " Vaux says that Science's idea to pass some papers to statisticians "has some merit, but a weakness is that it relies on the board of reviewing editors to identify 'the papers that need scrutiny' in the first place. "

单选题During the past generation, the American middle-class family that once could count on hard work and fair play to keep itself financially secure had been transformed by economic risk and new realties. Now a pink slip, a bad diagnosis, or a disappearing spouse can reduce a family from solidly middle class to newly poor in a few months. In just one generation, millions of mothers have gone to work, transforming basic family economics. Scholars, policymakers, and critics of all stripes have debated the social implications of these changes, but few have looked at the side effect: family risk has risen as well. Today's families have budgeted to the limits of theirs new two-paycheck status. As a result, they have lost the parachuted they once had in times of financial setback — a back-up earner(usually Mom)who could go into the workforce if the primary earner got laid off or fell sick. This " added-worker effect" could support the safety net offered by unemployment insurance or disability insurance to help families weather bad times. But today, a disruption to family fortunes can no longer be made up with extra income from an otherwise-stay-at-home partner. During the same period, families have been asked to absorb much more risk in their retirement income. Steelworkers, airline employees, and now those in the auto industry are joining millions of families who must worry about interest rates, stock market fluctuation, and the harsh reality that they may outlive their retirement money. For much of the past year, President Bush campaigned to move Social Security to a saving-account model, with retirees trading much or all of their guaranteed payments for payments depending on investment returns. For younger families the picture is not any better. Both the absolute cost of healthcare and the share of it borne by families have risen — and newly fashionable health-saving plans are spreading from legislative halls to Wal-Mart workers, with much higher deductibles and a large new dose of investment risk for families' future healthcare. Even demographics are working against the middle class family, as the odds of having a weak elderly parent — and all the attendant need for physical and financial assistance — have jumped eightfold in just one generation. From the middle-class family perspective, much of this, understandably, looks far less like an opportunity to exercise more financial responsibility, and a good deal more like a frightening acceleration of the wholesale shift of financial risk onto their already overburdened shoulders. The financial fallout has begun, and the political fallout may not be far behind.